.panel{
    max-width: calc(400px - 40px);
    height: 600px;
    background-color: rgba(255, 255, 255, 0.253);
    border: 1px solid #ffffff;
    box-shadow: 0px 0px 5px black;
    margin-top: 100px;
    padding: 20px;
    color: #000000;
    backdrop-filter: blur(10px);
}

.bg {
    width: 100%;
    position: absolute;
    background-repeat: no-repeat;
    background-size: cover;
    background-image: url(../img/bg.jpg);
    top: 0;
    bottom: 0;
}

.in {
    width: calc(100% - 20px);
    height: 40px;
    background-color: rgba(255, 255, 255, 0.192);
    border: none;
    outline: none;
    margin-top: 10px;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.432);
    border-radius: 5px;
}

.btn {
    width: 130px;
    height: 40px;
    border: none;
    font-weight: bold;
    background-color: rgba(255, 255, 255, 0.849);
    border-radius: 5px;
}
.btn:active {
    background-color: #ffffff;
}

body {
    margin: 0px;
    overflow: hidden;
}

.btn:hover {
    background-color: #fff3f3;
}

img {
    width: 90px;
    height: 45px;
}